I'm pondering getting an HD Pro to take care of FX before and after a Randall RM4 preamp. All I'm looking for pregain are a decent phaser, tremolo, univibe, and wah. If I have to run cables to the floor for a wah, that opens up the use of any floor-based FX, however, I'd like to keep the signal chain confined to a small rack. So I'm curious if others are liking the wah pedal effect enough to use it... ?